Abstract: In an active matrix type display apparatus according to the present invention, the following measures are provided when stacking, on a substrate, a device layer (light emitting portion) formed by arranging a light emitting portion in a sub-pixel unit and a circuit layer (sub-pixel circuit) formed by arranging a sub-pixel circuit for driving the light emitting portion in the sub-pixel unit: the apparatus has a stripe arrangement as the arrangement of sub-pixel circuits and a delta arrangement as the arrangement of light emitting portions. Therefore, it is possible to improve reliability of the sub-pixel circuits while utilizing the advantages of the delta arrangement of the light emitting portions, and thus realize a high-reliability, high-definition, and high-brightness display apparatus.

Abstract: A multi-speaker apparatus generates and transmits sound waves in all directions toward and away from a surface upon which the apparatus is installed or mounted. The multi-speaker apparatus includes a middle/high frequency sound range speaker and a low frequency sound range speaker. The middle/high frequency sound range speaker and the low frequency sound range speaker are arranged relative to each other such that center axes thereof are aligned with an axis that is substantially perpendicular the surface upon which the apparatus is installed or mounted. A horn and a cabinet are arranged such that sound waves generated from the middle/high frequency sound range speaker and the low frequency sound range speaker are emitted in all directions both toward and away from the surface upon which the apparatus is supported or mounted.

Abstract: A photosensitive coloring composition comprising C.I. pigment yellow 150 which yields an extract In an amount of 1% by weight or less when subjected to extraction with tetrahydrofuran, other pigments, a solvent, a (meth)acrylic resin, a polyfunctional monomer, and a photopolymerization initiator. The photosensitive coloring composition is excellent in fluidity, anti-agglomeration property, anti-crystallization property, coloring power and the like, and, with the photosensitive coloring composition, images having superior sharpness when developed with an aqueous alkaline solution can be formed, and color filters having high uniformity, low surface coarseness and high coloring power, as well as liquid crystal display panels can be obtained steadily.

Abstract: A magnetic recording medium including a lubricant which is capable of maintaining adhesiveness and a lubricating characteristic regardless of conditions for use and with which the lubricating effect can be maintained for a long time so that an excellent running characteristic and satisfactory durability are realized. The magnetic recording medium includes a non-magnetic support member on which at least a magnetic layer is formed; and a lubricant held in an outermost layer of said magnetic recording medium, wherein the lubricant contains an ester compound of perfluoropolyether having a hydroxyl group at a terminal thereof and long-chain carboxylic acid and long-chain saturated fatty acid ester or an ester compound of perfluoropolyether having a carboxylic group at a terminal thereof and long-chain alcohol and long-chain saturated fatty acid ester.

Abstract: A pigment-dispersion photo-sensitive coating solution comprising a binder resin, an organic-solvent and a main pigment dispersed in the solvent, wherein the combined area of peaks detected at a relative retention ratio in the range of 0.68 to 0.72 based on a retention time of dibutyl phthalate and peaks detected at a relative retention ratio in the range of 1.06 to 1.10 based on a retention time of dibutyl phthalate is not more than 50% of the total area of all peaks when the pigment is extracted by ethyl acetate and the extracts are analyzed by high-speed liquid chromatography using dibutyl phthalate as internal standard, is provided and use of the coating solution ensures that the colored image of stable quality is formed.

Abstract: An objective optical system for endoscopes consisting, in order from the object side, of a front lens unit having a negative refractive power, and a rear lens unit which is composed of a single lens component and has a positive refractive power.

Abstract: A magnetic recording medium comprising a non-magnetic support, a magnetic metal thin film formed on one surface of the non-magnetic support and a back coating layer formed on the opposite surface of the non-magnetic support. The back coating layer is composed of non-magnetic pigment powders containing carbon powders and a binder, and the content of the carbon powders based on the total weight of the non-magnetic pigment powders is not less than 20 wt %. The weight ratio of the non-magnetic pigment powders to the binder is 0.5 to 2, while the coating thickness of the back coating layer is not less than 0.2 .mu.m. The surface resistivity of both the magnetic metal layer and the back coating layer is not higher than 10.sup.6 .OMEGA./sq. The stable running performance may be achieved even if the thickness of the back coating layer is reduced, if within a range of 0.2 .mu.m or higher.

Abstract: Novel aconitine compounds of the formula ##STR1## wherein the symbols are as defined in the description, as well as analgesic/anti-inflammatory agent containing them or salts thereof as active ingredient.

Abstract: Novel aconitine compounds of the formula ##STR1## wherein the symbols are as defined in the description, as well as analgesic/anti-inflammatory agent containing them or salts thereof as active ingredient.

Abstract: An illumination optical system for endoscopes which comprises a lens component having at least one aspherical surface in a shape F(h) satisfying the condition mentioned below, and satisfies relationship of h=f.cndot..theta. or h=f.cndot.sin.theta.. This illumination optical system is capable of providing favorable luminance distributions on all planar surfaces, spherical surfaces and tubular surfaces.

Abstract: Novel aconitine compounds of the formula ##STR1## wherein the symbols are as defined in the description, as well as analgesic/anti-inflammatory agent containing them or salts thereof as active ingredient.

Abstract: Novel aconitine compounds of the formula ##STR1## wherein the symbols are as defined in the description, as well as analgesic/anti-inflammatory agent containing them or salts thereof as active ingredient.

Abstract: There is disclosed a process for preparing D-mandelic acid comprising the steps of:(1) treating racemic mandelic acid with a culture broth, cells or treated cells of a microorganism having ability of converting L-mandelic acid into benzoylformic acid.(2) treating the reaction mixture of the step (1) with a culture broth, cells or treated cells of a microorganism having ability of stereoselectively reducing benzoylformic acid into D-mandelic acid, and(3) isolating and collecting the D-mandelic acid from the reaction mixture.

Abstract: A method of assembling a semiconductor chip on a tape carrier has the steps of stacking, on a film carrier having a first group of metal leads, another film carrier having a second group of metal leads and bonding the two film carriers together by adhesive to form a laminated structure. The first and second groups of metal leads are so disposed that they do not contact and do not cross one another. The tips of the metal leads of the two groups are bonded to the electrodes on the semiconductor chip. The metal leads are formed in advance on the corresponding film carriers by etching. By stacking the plurality of film carriers, the connection pitch can be reduced while eliminating a necessity for reducing the thickness of each lead.

Abstract: An internal combustion engine and method for operating the engine wherein a leaner than stoichiometric air/fuel ratio is maintained under all running conditions. The desired torque curve is obtained by increasing the amount of boost generated to the intake air charge without enrichening the air/fuel mixture. In addition, an anti-knocking system is incorporated that avoids knocking by retarding the spark advance and, at the same time, providing a leaning in the air/fuel mixture.

Abstract: The present invention relates to a retrofocus type of objective lens system for endoscopes which has a wide field angle, a short total length and a short outer diameter, comprises a limited number of lenses and is well corrected for various aberrations. This objective lens for endscopes comprises a first lens component L.sub.1 having a negative refractive power, a second lens component L.sub.2 having a positive refractive power, an aperture stop S positioned just in the rear of the second lens component L.sub.2 and a third lens component that is a cemented lens obtained by cementing together a positive lens and a negative lens.

Abstract: There is disclosed a process for preparing optically active 3-phenylglycidic acid ester compound, which comprises permitting a culture broth, cells or treated cells of a microorganism having an ability of stereoselectively hydrolyzing a (2R, 3S)-3-phenylglycidic acid ester compound to act on a racemic 3-phenylglycidic acid ester compound which may also have a substituent on the phenyl group, thereby hydrolyzing the (2R, 3S) optically active isomer and separating and collecting the (2S, 3R) antipode from the reaction mixture.

Abstract: An immobilized enzyme having reversible solubility is prepared by attaching an enzyme to a copolymer of two of more monomers selected from the group consisting of acrylic acid or an alkyl ester thereof, methacrylic acid or alkyl ester or dialkylamino-alkyl ester thereof, and a vinylpyridine derivative of the general formula [U]: ##STR1## wherein R is an alkyl. Preferred capolymers are methacrylic acid-alkyl methacrylate-alkyl acrylate, methacrylic acid-alkyl methacrylate, alkyl acrylate-methacrylic acid, alkyl acrylate-methacrylic acid-alkyl acrylate, alkyl acrylate-methacrylic acid-2-methyl-5-vinylpyridine and dialkylaminoalkyl methacrylate-alkyl methacrylate. The immobilized enzyme has a high activity and can dissolve even in an organic solvent or in a solution containing an organic solvent.

Abstract: A buried-heterostructure semiconductor laser including a mesa-shaped optical confinement region having an active layer and a clad layer and disposed on a semiconductor substrate; a burying layer burying both side surfaces of the region; and at least one p-n junction so formed inside the burying layer in parallel to the active layer as to be brought under the reversely biased state during the operation of the laser; wherein surface protection semiconductor layers are formed on the mesa-shaped optical confinement region and on the burying layer, respectively, for protecting the semiconductor assembly in the arrangement such that these surface protection semiconductor layers do not come into direct contact with each other.

Abstract: An immobilized aminoacylase is prepared by bonding aminoacylase to a water-insoluble porous anion exchanger such as a porous phenolic resin, porous styrene resin, porous silica or porous glass having anion exchange groups and treating the bonded amino-acylase with a crosslinking agent such as an aliphatic dialdehyde. The porous anion exchanger preferably has a pore size of about 150.degree. to 3,000 A.degree., pore volume of about 0.3 to 1.0 m.sup.1 /g, specific surface area of about 10 to 150 m.sup.2 /g and particle size of above 0.1 to 1.2 mm. Preferred anion exchangers are trimethylammonium-introduced styrene resin and trimethylammonium-introduced silica.